#!/usr/bin/env node
const fs = require('fs');
const file = process.argv[2] || __filename;

//get file size----create buffer
//open---operate---close

try{
  let len = fs.statSync(file).size;
  let buf = Buffer.alloc(len);

  let fid = fs.openSync(file,'r');

  fs.readSync(fid,buf,0,len,0);
  console.log(buf.toString('utf8'));

  fs.closeSync(fid);

}catch(e){
  console.error(e.message);
  process.exit(1);
}


